2016 Kenworth T800 TSBs
32 Technical Service Bulletins across 13 categories
Categories
Engine
7 bulletinsCertain chassis with Engine Model Year 2016-2021 PACCAR MX-11/MX-13, or EPA13 and EPA21 Cummins ISX12/ISX15/X15 engines...
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that had a previously failed DEF sensor and with DEF sensor software disabled due to industry DEF sensor shortages will now be able to receive a replacement DEF sensor, DEF tank heater coolant control valve, and re-enabled DEF diagnostic software. Please note that chassis equipped with PACCAR PX engines will be eligible for this repair at a future date when software is available.
E279: PACCAR MX-13/MX-11 Engine MY17 Software Incorrectly Sets DTC P1092 PACCAR MX-13/MX-11 Engine MY17 Software...
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Incorrectly Sets DTC P1092 Emission Recall - PACCAR MX-13/MX-11 MY2017 software incorrectly sets DTC P1092, which could result in reduced available engine torque and/or engine protection mode. An engine software update is available that corrects the issue.
Kenworth is providing guidance for PACCAR MX Engine Composite Oil Pan leak troubleshooting to avoid over-repairs and to...
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provide warrantable repair guidance. Oil leaks, if not repaired, can lead to severe engine damage.
An engine software update is required to resolve OBD system readiness, DEF doser diagnostics, and otherOBD system...
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software related issues.
Eaton ultrashift plus excessive engine over-speed lamp on.
Fix-As-Fail - Composite fittings used in the cooling system may crack, resulting in coolant leaks.
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Brass fittings are available to replace the composite fittings.
FIX-AS-FAIL - ENGINE OVER-SPEED LAMP COULD COME ON AFTER A DOWNSHIFT WITH THE EATON ULTRASHIFT PLUS TRANSMISSION.
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THIS DOES NOT AFFECT THE FUNCTION OF THE VEHICLE.
Electrical
6 bulletinsFix-As-Fail Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available.
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As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a vehicle to continue operation with a failed DEF sensor by disabling the DEF sensor diagnostics.
Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the...
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appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
Information Only Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead...
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to water intrusion and corrosion in some vehicles.
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
Fix as Fail: Vehicles built 11/30/15 to 7/18/16 may display an error message in the Service Advised display after...
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updating CECU software.
Non-safety Campaign: Some vehicles were equipped with a power fuse harness covered with an aluminum-faced tape in the...
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battery box area.
Other
3 bulletinsDue to supplier constraints, an authorized aftermarket surge tank has been made available.
"Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes.
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2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank part number...
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M86-6221-003**(TANK-DEF MEDIUM ASSY) and M86-6222-003**(TANK-DEF LARGE, ASSY). Resolution is to resolve the vibration on the tank cover by adding bottom tank washers.
Software & Calibration
2 bulletinsCARB Chassis Update - Chassis list updated with 5 KW and 31 PB additional chassis.
Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer.
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The issue can be temporarily resolved using any one of the included procedures.
Brakes
2 bulletinsCertain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air volume...
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requirements per FMVSS/CMVSS 121 Air Brake Systems. This bulletin will be updated when repair parts and procedures are available.
Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking
HVAC & Climate
2 bulletinsInformation Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the...
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A/C compressor.
Fix-As-Fail - C500, T440/T470, T800, W900 chassis HVAC Controllers may become unresponsive after rotating the temperature control knob quickly.
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HVAC Controllers with improved firmware are available to resolve this issue.
Pre-Delivery & Maintenance
2 bulletinsInformation Only This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke...
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Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
Non-Safety Campaign - OBD modem is unable to communicate to telematics systems.
Fuel System
2 bulletinsNon-Safety Campaign- Incorrect GHG emissions identifier label for the tire classification listed on printed label.
Non-Safety Campaign- Incorrect GHG emissions identifier label for the tire classification listed on printed label.
Suspension
2 bulletinsFix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
Body & Paint
1 bulletinInformation Only Windshield washer pumps have a high No Trouble Found rate.
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Washer pumps may fail to spray due to a clogged filter.
Transmission
1 bulletinFix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator...
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(LCA) fault codes leading to possible LCA hardware replacement.
Lighting
1 bulletinFix-As-Fail - A U1548 fault code is present in the DAVIE log file, with no fault lamp illuminated or other obvious...
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symptoms.
Infotainment
1 bulletinFIX-AS-REQUESTED - NAV+ HD SOFTWARE UPDATE FOR RANDOM REBOOT FIX AND MP3 FEATURES ENABLED.